Summary: Decrypts crypttext with given parameters
PHP 5Related methods: mcrypt_encrypt
string mcrypt_decrypt(string $cipher, string $key, string $data, string $mode[, string $iv])
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
data and returns the unencrypted data.
Returns the decrypted data as a string or
FALSE on failure.
- string $cipher: One of the
MCRYPT_ciphernameconstants, or the name of the algorithm as string.
- string $key: The key with which the data was encrypted. If the provided key size is not supported by the cipher, the function will emit a warning and return
- string $data: The data that will be decrypted with the given
mode. If the size of the data is not n * blocksize, the data will be padded with '\0'.
- string $mode: One of the
MCRYPT_MODE_modenameconstants, or one of the following strings: "ecb", "cbc", "cfb", "ofb", "nofb" or "stream".
- string $iv: Used for the initialization in CBC, CFB, OFB modes, and in some algorithms in STREAM mode. If the provided IV size is not supported by the chaining mode or no IV was provided, but the chaining mode requires one, the function will emit a warning and return